Installing and connecting the device
3.3 Connecting the device
SIMATIC IPC277E
Operating Instructions, 11/2019, A5E35783335-AE
55
3.3.4
Connecting the power supply to the 12", 15 and 19" devices
Note
The device may only be connected to a 24 V DC power supply which meets the
requirements of a safe extra-low voltage (SELV/PELV)
in accordance with IEC/EN/DIN EN/UL 60950-1 or IEC/EN/DIN EN/UL 61010-2-201.
The power supply must fulfill the requirements of NEC Class 2 or LPS of IEC/EN/DIN EN/UL
60950-1 or Limited Energy according to IEC/EN/DIN EN/UL 61010-2-201.
Note
The 24 V DC power supply must be adapted to the input data of the device (see the section
"Technical specifications").
Requirement
●
The protective conductor is connected.
●
You are using the connection terminal supplied.
●
A two-core cable with a cable cross-section for the 24 V DC connection of at least
0.75 mm
2
(= AWG18) up to maximum 2.5 mm
2
(= AWG14).
●
A slotted screwdriver with approx. 3 mm blade.
